/*===================================================================*/ /* NRDF D1942 Data No.3 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,3; D#=D1942; TITLE=/ Angular distributions of protons from the reaction 12C(alpha,p)15N /; ATH=(I.NONAKA'1', H.YAMAGUCHI'1', T.MIKUMO'1', I.UMEDA'2', T.TABATA'2', S.HITAKA'3'); INST-ATH=(2JPNINS'1', 2JPNKTO'2', 2JPNKYU'3'); REF=JPJ; VLP=14(1959)1260; /* Secondary reference - INS-J, 34(1960) (I.Nonaka et al., Numerical data) RCTS=12C(ALPHA,P)15N; PHQS=ANGL-DSTRN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,3; /* 2005-10-01 : Compiled, C.Kurokawa + N.Otuka */ PHQ=ANGL-DSTRN; PHYS-FORM=SLD; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC; INST-ACC=2JPNINS; ERS-PRJ=0.5%; BEAM-INTNSTY=[0.1UA; POL-PRJ=0%; DET-PARTCL=P; COINC=NO; ANT-COINC=NO; RCT=12C(ALPHA,P)15N; CHM=X'23'; /* '23' Soots of benzen for small angles and polystyrene for other angles (The latter masked excited states at extreme forward angles theta(lab)<40 deg.) */ THK-TGT=([0.5MG/CM**2,[3.0MG/CM**2)'24'; /* '24' About 0.5 mg/cm**2 for soots of benzen and about 3.0 mg/cm**2 for polystyrene film */ BAC=AU'25'; /* '25' Used for soots of benzene target */ THK-BAC=XMG/CM**2'26'; /* '26' 1 micro-meter thick */ INC-ENGY-LAB=34.6MEV; DET-SYS=(PROP-CNTR'27',NAI'28'); /* '27' To suppress gamma-ray background */ /* '28' To detect proton */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,3; SYS-ERR=(1[3%'4',[1%'5',[1%'6',[1%'7'); /* '4' Uncertainty in background subtraction */ /* '5' Uncertainty in the determination of mean target thickness, arising chiefly from the measurements of target areas for both polystyrene and carbon foil targets */ /* '6' Uncertainty in the estimation of the beam current integration */ /* '7' Uncertainty in the estimation of the detector solid angles STATIST-ERR=<10%'8'; /* '8' Maximum statistical uncertainty (3-10%) */ INC-ENGY-LAB=34.6MEV; EXC-ENGY=(7.16MEV,7.31MEV,7.58MEV); /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'29' (DEG) (UB/SR) (UB/SR) 47.7 285 +-4.1 59.1 233 +-6.4 70.3 190 +-6.2 81.2 184 +-6.2 91.8 177 +-6.3 102.0 120 +-3.2 111.8 128 +-6.2 130.3 124 +-6.5 139.1 70.8 +-5.1 \END; /*===================================================================*/ |